<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Promise关键问题 - 中断 Promise 链条</title>
</head>
<body>
	<script>
		let p = new Promise((resolve,reject)=>{
			setTimeout(()=>{
				resolve('OK')
			},1000)
		})
		
		p.then(value =>{
			console.log(111)
			// 有且只有一种方式
			return new Promise(()=>{})
		}).then(value =>{
			console.log(222)
		}).then(value=>{
			console.log(333)
		}).catch(reason =>{
			console.warn(reason)
		})
	</script>
</body>
</html>